[clang] [Clang] Substitute non dependent concepts in constraints (PR #163827)

[Corentin Jabot via cfe-commits]

================
@@ -5192,6 +5198,46 @@ bool TreeTransform<Derived>::TransformTemplateArguments(
   return false;
 }
 
+template <typename Derived>
----------------
cor3ntin wrote:

The goal is to only transform Arguments that are concept

```
SomeConcept<SomeType, SomeValue, SomeConceptName>
                                                                             ^- only transform that - everything else goes into the mapping instead
```

https://github.com/llvm/llvm-project/pull/163827